My brother is obviously invited to my wedding. He has a crazy (unhealthy in my opinion, but it's not my say...) relationship that is on-again-off-again. they are engaged, then he's kicked out. Then they are back together again, and then she's out...it's honestly a whirlwind. I thought about just sending the invite to him with a plus one...but then how do i make sure he/they know that if they are on an on-again stage that her kids are invited. Brother, plus one and family? It's a more casual wedding so I could probably just tell my brother that her kids are invited if she comes but I don't want to cause issues by bringing up the fact that they might break up again (he's weird about it).